CN104270170B - Electric pulse transmission system - Google Patents
Electric pulse transmission system Download PDFInfo
- Publication number
- CN104270170B CN104270170B CN201410471571.3A CN201410471571A CN104270170B CN 104270170 B CN104270170 B CN 104270170B CN 201410471571 A CN201410471571 A CN 201410471571A CN 104270170 B CN104270170 B CN 104270170B
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- Prior art keywords
- cable
- mcp
- connector
- electric pulse
- microstrip line
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 210000004759 MCP Anatomy 0.000 claims abstract 8
- 238000005259 measurement Methods 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 2
- 230000001808 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000009432 framing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- SHDPRTQPPWIEJG-UHFFFAOYSA-N 1-Methylcyclopropene Chemical compound CC1=CC1 SHDPRTQPPWIEJG-UHFFFAOYSA-N 0.000 description 1
- 206010003084 Areflexia Diseases 0.000 description 1
- 210000001367 Arteries Anatomy 0.000 description 1
- 210000002381 Plasma Anatomy 0.000 description 1
- 210000003462 Veins Anatomy 0.000 description 1
- 230000023298 conjugation with cellular fusion Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000005658 nuclear physics Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003595 spectral Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000021037 unidirectional conjugation Effects 0.000 description 1
Abstract
The present invention relates to a kind of electric pulse transmission system, this electric pulse transmission system includes input connector, cable, MCP microstrip line and outfan connector；MCP microstrip line is connected with input connector and outfan connector respectively by cable；The characteristic impedance of the characteristic impedance of input connector, the characteristic impedance of cable and outfan connector is identical with MCP microstrip line characteristic impedance respectively.The present invention provides a kind of impedance to mate completely and fundamentally can solve electric pulse waveform distortion and the electric pulse transmission system of voltage loss that gradual change coupling causes.
Description
Technical field
The invention belongs to inertial confinement fusion diagnostic techniques field, relate to a kind of electric pulse transmission system, especially
Relate to a kind of microchannel plate travelling wave gating framing camera electricity consumption pulse transmission system.
Background technology
Microchannel plate (MCP) travelling wave gating framing camera is a kind of two dimensional image acquisition device, for X-ray
With the ultrafast phenomenon diagnosis in ultraviolet spectral range, its range of application covers nuclear physics, biomedical light
The Overseas New subjects such as son, plasma physics, Strong-field physics, are that inertial confinement fusion tests institute
With necessary diagnostic device.
Micro-strip line transmission system used by microchannel plate travelling wave gating framing camera is broadly divided into 5 parts.1. signal is defeated
Enter end (50 ohm of SMA)；2. 50 ohm are arrived ZMCPOhm (feature of the au cathode microstrip line being coated with on MCP
Impedance is ZMCP) input gradual change microstrip line；3. the au cathode microstrip line being coated with on MCP (is called for short: MCP
Microstrip line)；④ZMCPThe output gradual change microstrip line of ohm to 50 ohm；5. signal output part (50 ohm of SMA).
During framing camera work, high pressure gating electric pulse transmits over the whole system, when approach MCP microstrip line,
The photoelectron being strobed region generation is amplified by MCP multiplication.The shape of electric pulse, amplitude directly affect point
The temporal resolution of width camera and flatness.When electric pulse transmits on the microstrip line, mainly transmitted
Line structure and the impact of impedance variation and change.The most how making electric pulse Lossless transport is diagnostic techniques
The problem that personnel endeavour to solve always.
Traditional electric pulse transmission system is to use gradual change microstrip line matching method, as mentioned above.It is in certain journey
The reflected signal impact on electric pulse is reduced on degree, but owing to gradual change microstrip line needs long enough to rise
To reducing reflected signal effect, so framing camera complete machine structure is bigger, micro-strip line impedance coupling structure is multiple
Miscellaneous.When framing camera size is affected by condition and can not do big, the effect of gradual change microstrip line is the most inconspicuous.
And gradual change microstrip line is by reflected signal homogenization, reflected signal can not be inherently eliminated to electricity arteries and veins
The impact of punching, still results in certain image fault, causes diagnostic error.
Summary of the invention
In order to solve above-mentioned technical problem present in background technology, the present invention provides a kind of impedance to mate completely
And fundamentally can solve electric pulse waveform distortion and the electric pulse transmission of voltage loss that gradual change coupling causes
System.
The technical solution of the present invention is: the invention provides a kind of electric pulse transmission system, its special it
Place is: described electric pulse transmission system includes input connector, cable, MCP microstrip line and output
Termination plug-in unit；MCP microstrip line is connected with input connector and outfan connector respectively by cable；
The described characteristic impedance of input connector, the characteristic impedance of cable and the characteristic impedance of outfan connector
Identical with MCP microstrip line characteristic impedance respectively.
Above-mentioned MCP microstrip line is patched with input connector and outfan respectively by single or multi-cable
Part is connected.
When above-mentioned cable is many, described multi-cable is parallel with one another.
When above-mentioned cable is many, described input connector or outfan connector distinguish the most coupled electricity
The quantity of cable is corresponding.
The characteristic impedance of above-mentioned MCP microstrip line is obtained by actual measurement of TDR impedance instrument.
The invention have the advantage that
The present invention provides a kind of electric pulse being applicable to framing camera transmission system, no longer use traditional gradually
Become microstrip line mode, but in the whole series transmission system, all use consistent with MCP microstrip line characteristic impedance value
Matching way, make each Coupling point mate completely, do not have pip, i.e. sending-end impedance is ZMCP's
Connector and impedance are ZMCPInput cable be connected, cable is connected with MCP microstrip line again, micro-strip
Line is Z with impedance againMCPOutfan cable be connected, cable and outfan impedance are ZMCPConnector phase
Connect.The present invention uses the cable with MCP microstrip line same characteristic features impedance directly and MCP micro-strip line impedance
Coupling matching, is inherently eliminated the voltage reflection that impedance discontinuity causes, and uses connecing of same characteristic features impedance
Plug-in unit also eliminates the voltage reflection of input/output terminal, makes electric pulse will not produce distortion, fundamentally solves
Electric pulse waveform distortion that gradual change coupling causes and the technical problem of voltage loss.Meanwhile, the present invention also may be used
To be greatly reduced the physical dimension of framing camera, required design structure so that it is be more broadly useful for various diagnosis
In system.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of electric pulse provided by the present invention transmission system；
Fig. 2 is the topological schematic diagram of Fig. 1；
Wherein:
1-MCP (microchannel plate)；2-microstrip line；3-input connector；4-is connected with input connector
Cable；The cable that 5-is connected with outfan connector；6-outfan connector.
Detailed description of the invention
The operation principle of the present invention is: not in use by gradual change microstrip line, and use cable directly to transmit, and changes
4 parts in 5 parts of said system, are implemented as follows:
MCP microstrip line characteristic impedance Z is obtained by reality measurementMCP.Customization and MCP microstrip line characteristic impedance
ZMCPIdentical input connector, outfan connector and cable, replaces original 50 ohm of connectors (defeated
Enter end and outfan) and gradual change microstrip line (input and export).
Below in conjunction with accompanying drawing, the present invention is described in detail.
In travelling wave gating framing camera design process, due to not mating of each point impedance, electric pulse is caused to pass
Produce reflection during defeated, thus cause the distortion of electric pulse waveform, finally cause framing camera gain not
Uniformity.In order to eliminate impedance mismatch point, devise electric pulse transmission system as shown in Figure 1, at MCP
The microstrip line 2 transmission line as electric pulse it is coated with on (microchannel plate) 1, can be real by TDR impedance instrument
Border records the characteristic impedance Zmcp of microstrip line 2.Electric pulse inputs at input connector 3, and input patches
It is Zmcp that the characteristic impedance of part 3 is chosen equally；It it is being connected with input connector of Zmcp by characteristic impedance
Cable 4 after be transferred to microstrip line 2, be the cable 5 that Zmcp is connected with outfan connector further along characteristic impedance
Continuing transmission to characteristic impedance is at the outfan connector 6 of Zmcp, and whole transmitting procedure no resistance changes, because of
Areflexia when this electric pulse transmits over the whole system, the final uniformity gain obtaining framing camera.
MCP microstrip line 2 can by single or multi-cable respectively with input connector 3 and outfan
Connector 6 is connected.
See Fig. 2, when cable is many, be parallel with one another between multi-cable；Meanwhile, when cable it is
When many, the quantity of input connector 3 or the most coupled cable of outfan connector 6 is relative
Answer.The impedance of input is ZMCPConnector and impedance be ZMCPCable be connected, cable again with
MCP microstrip line is connected, and microstrip line is Z with impedance againMCPCable be connected, cable and outfan impedance
For ZMCPConnector be connected.
The characteristic impedance of MCP microstrip line is obtained by actual measurement of TDR impedance instrument.
Claims (5)
1. an electric pulse transmission system, it is characterised in that: described electric pulse transmission system includes input termination
Plug-in unit, cable, MCP microstrip line and outfan connector；MCP microstrip line by cable respectively with input
Termination plug-in unit and outfan connector are connected；The characteristic impedance of described input connector, the feature of cable
The characteristic impedance of impedance and outfan connector is identical with MCP microstrip line characteristic impedance respectively.
Electric pulse the most according to claim 1 transmission system, it is characterised in that: described MCP micro-strip
Line is connected with input connector and outfan connector respectively by single or multi-cable.
Electric pulse the most according to claim 2 transmission system, it is characterised in that: described cable is many
Time, described multi-cable is parallel with one another.
Electric pulse the most according to claim 3 transmission system, it is characterised in that: described cable is many
Time, the quantity of described input connector or the most coupled cable of outfan connector is corresponding.
5. transmit system according to the electric pulse described in claim 1 or 2 or 3 or 4, it is characterised in that: institute
The characteristic impedance stating MCP microstrip line is obtained by actual measurement of TDR impedance instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471571.3A CN104270170B (en) | 2014-09-16 | Electric pulse transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471571.3A CN104270170B (en) | 2014-09-16 | Electric pulse transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104270170A CN104270170A (en) | 2015-01-07 |
| CN104270170B true CN104270170B (en) | 2017-01-04 |
Family
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11283707A (en) * | 1998-03-27 | 1999-10-15 | Nec Eng Ltd | Connector device for microstrip |
| CN2456373Y (en) * | 2000-12-13 | 2001-10-24 | 中国科学院西安光学精密机械研究所 | Super-quick pulse generator with program random shaping |
| JP2003208949A (en) * | 2002-01-10 | 2003-07-25 | Hitachi Kokusai Electric Inc | Mounting structure of connector for connecting coaxial cable |
| CN2773749Y (en) * | 2005-07-26 | 2006-04-19 | 中国科学院西安光学精密机械研究所 | Travelling gated framing camera of x-ray micro-channel panel |
| CN101672874A (en) * | 2009-09-23 | 2010-03-17 | 深圳市博敏电子有限公司 | Microstrip transmission line impedance parameter test method |
| CN103077874A (en) * | 2011-10-25 | 2013-05-01 | 中国科学院西安光学精密机械研究所 | Grid-control X-ray source and spatial X-ray communication system and method |
| CN103197217A (en) * | 2013-04-15 | 2013-07-10 | 哈尔滨理工大学 | Ultrahigh frequency sensor for cable partial discharge online monitoring |
| CN204231340U (en) * | 2014-09-16 | 2015-03-25 | 中国科学院西安光学精密机械研究所 | Electric pulse transmission system |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11283707A (en) * | 1998-03-27 | 1999-10-15 | Nec Eng Ltd | Connector device for microstrip |
| CN2456373Y (en) * | 2000-12-13 | 2001-10-24 | 中国科学院西安光学精密机械研究所 | Super-quick pulse generator with program random shaping |
| JP2003208949A (en) * | 2002-01-10 | 2003-07-25 | Hitachi Kokusai Electric Inc | Mounting structure of connector for connecting coaxial cable |
| CN2773749Y (en) * | 2005-07-26 | 2006-04-19 | 中国科学院西安光学精密机械研究所 | Travelling gated framing camera of x-ray micro-channel panel |
| CN101672874A (en) * | 2009-09-23 | 2010-03-17 | 深圳市博敏电子有限公司 | Microstrip transmission line impedance parameter test method |
| CN103077874A (en) * | 2011-10-25 | 2013-05-01 | 中国科学院西安光学精密机械研究所 | Grid-control X-ray source and spatial X-ray communication system and method |
| CN103197217A (en) * | 2013-04-15 | 2013-07-10 | 哈尔滨理工大学 | Ultrahigh frequency sensor for cable partial discharge online monitoring |
| CN204231340U (en) * | 2014-09-16 | 2015-03-25 | 中国科学院西安光学精密机械研究所 | Electric pulse transmission system |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20180916 |